A type of protein that is found with DNA in chromosomes. It is important in packaging DNA to form chromosomes. However, bacterial DNA does not contain it.
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Card 17
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A pair of chromosomes which have the same genes but different allelles.
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Card 18
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An organism that a parasite lives in or on, feeding from it and causing it harm.
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Card 19
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The stage in the cell cycle where a cell is not dividing. During this period proteins are made, cell organelles are replicated,respiration occurs and DNA is replicated.
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Card 20
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The position of a gene on a chromosome.
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Card 21
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The ability of cereal grain crops to be blown over by the wind and the rain.
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Card 22
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A cancerous tumour that destroys the surrounding tissues. Cells from it may spread through the body via the blood or lymphatic system and cause secondary tumours eleswhere.
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Card 23
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The fluid filled area inside the mitochondrion. It contains enzymes used in aerobic respiration.
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Card 24
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The stage in mitosis where the chromosomes are arranged around the equator of the spindle.
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Card 25
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The process by which a cell can break off a primary tumour and travel in the blood or lymph system to start off a secondary tumour elsewhere in the body.
